Finding the Third Proportional to 152,199 and 330,637.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,199 : 330,637.50 = 330,637.50 : x
2. Step 2: Convert to fraction form
   152,199/330,637.50 = 330,637.50/x
3. Step 3: Cross multiply
   152,199x = 330,637.50 × 330,637.50
4. Step 4: Simplify right side
   152,199x = 109,321,156,406.25
5. Step 5: Solve for x
   x = 109,321,156,406.25/152,199
6. Step 6: Final answer
   x = 718,277.76